lib/Support/regex_impl.h

   1 /*-
   2  * This code is derived from OpenBSD's libc/regex, original license follows:
   3  *
   4  * Copyright (c) 1992 Henry Spencer.
   5  * Copyright (c) 1992, 1993
   6  *      The Regents of the University of California.  All rights reserved.
   7  *
   8  * This code is derived from software contributed to Berkeley by
   9  * Henry Spencer of the University of Toronto.
  10  *
  11  * Redistribution and use in source and binary forms, with or without
  12  * modification, are permitted provided that the following conditions
  13  * are met:
  14  * 1. Redistributions of source code must retain the above copyright
  15  *    notice, this list of conditions and the following disclaimer.
  16  * 2. Redistributions in binary form must reproduce the above copyright
  17  *    notice, this list of conditions and the following disclaimer in the
  18  *    documentation and/or other materials provided with the distribution.
  19  * 3. Neither the name of the University nor the names of its contributors
  20  *    may be used to endorse or promote products derived from this software
  21  *    without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  * SUCH DAMAGE.
  34  *
  35  *      @(#)regex.h     8.1 (Berkeley) 6/2/93
  36  */
  37
  38 #ifndef _REGEX_H_
  39 #define _REGEX_H_
  40
  41 #include <sys/types.h>
  42 typedef off_t llvm_regoff_t;
  43 typedef struct {
  44   llvm_regoff_t rm_so;          /* start of match */
  45   llvm_regoff_t rm_eo;          /* end of match */
  46 } llvm_regmatch_t;
  47
  48 typedef struct llvm_regex {
  49   int re_magic;
  50   size_t re_nsub;               /* number of parenthesized subexpressions */
  51   const char *re_endp;  /* end pointer for REG_PEND */
  52   struct re_guts *re_g; /* none of your business :-) */
  53 } llvm_regex_t;
  54
  55 /* llvm_regcomp() flags */
  56 #define REG_BASIC       0000
  57 #define REG_EXTENDED    0001
  58 #define REG_ICASE       0002
  59 #define REG_NOSUB       0004
  60 #define REG_NEWLINE     0010
  61 #define REG_NOSPEC      0020
  62 #define REG_PEND        0040
  63 #define REG_DUMP        0200
  64
  65 /* llvm_regerror() flags */
  66 #define REG_NOMATCH      1
  67 #define REG_BADPAT       2
  68 #define REG_ECOLLATE     3
  69 #define REG_ECTYPE       4
  70 #define REG_EESCAPE      5
  71 #define REG_ESUBREG      6
  72 #define REG_EBRACK       7
  73 #define REG_EPAREN       8
  74 #define REG_EBRACE       9
  75 #define REG_BADBR       10
  76 #define REG_ERANGE      11
  77 #define REG_ESPACE      12
  78 #define REG_BADRPT      13
  79 #define REG_EMPTY       14
  80 #define REG_ASSERT      15
  81 #define REG_INVARG      16
  82 #define REG_ATOI        255     /* convert name to number (!) */
  83 #define REG_ITOA        0400    /* convert number to name (!) */
  84
  85 /* llvm_regexec() flags */
  86 #define REG_NOTBOL      00001
  87 #define REG_NOTEOL      00002
  88 #define REG_STARTEND    00004
  89 #define REG_TRACE       00400   /* tracing of execution */
  90 #define REG_LARGE       01000   /* force large representation */
  91 #define REG_BACKR       02000   /* force use of backref code */
  92
  93 #ifdef __cplusplus
  94 extern "C" {
  95 #endif
  96
  97 int     llvm_regcomp(llvm_regex_t *, const char *, int);
  98 size_t  llvm_regerror(int, const llvm_regex_t *, char *, size_t);
  99 int     llvm_regexec(const llvm_regex_t *, const char *, size_t,
 100                      llvm_regmatch_t [], int);
 101 void    llvm_regfree(llvm_regex_t *);
 102 size_t  llvm_strlcpy(char *dst, const char *src, size_t siz);
 103
 104 #ifdef __cplusplus
 105 }
 106 #endif
 107
 108 #endif /* !_REGEX_H_ */